Finding the Fourth Proportional to 931,039,256.15, 1,394,978,454.12 and 561,798,314.00

Step by Step Solution

1. Step 1: Write the proportion equation
   931,039,256.15 : 1,394,978,454.12 = 561,798,314.00 : x
2. Step 2: Convert to fraction form
   931,039,256.15/1,394,978,454.12 = 561,798,314.00/x
3. Step 3: Cross multiply
   931,039,256.15x = 1,394,978,454.12 × 561,798,314.00
4. Step 4: Simplify right side
   931,039,256.15x = 783,696,543,599,158,912
5. Step 5: Solve for x
   x = 783,696,543,599,158,912/931,039,256.15
6. Step 6: Final answer
   x = 841,743,823.82