Finding the Fourth Proportional to 91,688.16, 137,356.56 and 62,054.88

Step by Step Solution

1. Step 1: Write the proportion equation
   91,688.16 : 137,356.56 = 62,054.88 : x
2. Step 2: Convert to fraction form
   91,688.16/137,356.56 = 62,054.88/x
3. Step 3: Cross multiply
   91,688.16x = 137,356.56 × 62,054.88
4. Step 4: Simplify right side
   91,688.16x = 8,523,644,848.01
5. Step 5: Solve for x
   x = 8,523,644,848.01/91,688.16
6. Step 6: Final answer
   x = 92,963.42