Finding the Fourth Proportional to 931,068,914.46, 1,396,512,686.52 and 378,404,479.14

Step by Step Solution

1. Step 1: Write the proportion equation
   931,068,914.46 : 1,396,512,686.52 = 378,404,479.14 : x
2. Step 2: Convert to fraction form
   931,068,914.46/1,396,512,686.52 = 378,404,479.14/x
3. Step 3: Cross multiply
   931,068,914.46x = 1,396,512,686.52 × 378,404,479.14
4. Step 4: Simplify right side
   931,068,914.46x = 528,446,655,755,002,688
5. Step 5: Solve for x
   x = 528,446,655,755,002,688/931,068,914.46
6. Step 6: Final answer
   x = 567,569,862.50