Finding the Fourth Proportional to 64,191,772.40, 88,561,398.48 and 42,177,128.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,191,772.40 : 88,561,398.48 = 42,177,128.72 : x
2. Step 2: Convert to fraction form
   64,191,772.40/88,561,398.48 = 42,177,128.72/x
3. Step 3: Cross multiply
   64,191,772.40x = 88,561,398.48 × 42,177,128.72
4. Step 4: Simplify right side
   64,191,772.40x = 3,735,265,503,314,172.50
5. Step 5: Solve for x
   x = 3,735,265,503,314,172.50/64,191,772.40
6. Step 6: Final answer
   x = 58,189,162.94