Finding the Fourth Proportional to 92,947,190.56, 139,293,238.71 and 58,807,420.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,947,190.56 : 139,293,238.71 = 58,807,420.72 : x
2. Step 2: Convert to fraction form
   92,947,190.56/139,293,238.71 = 58,807,420.72/x
3. Step 3: Cross multiply
   92,947,190.56x = 139,293,238.71 × 58,807,420.72
4. Step 4: Simplify right side
   92,947,190.56x = 8,191,476,092,270,360
5. Step 5: Solve for x
   x = 8,191,476,092,270,360/92,947,190.56
6. Step 6: Final answer
   x = 88,130,432.38