Finding the Fourth Proportional to 137,510.59, 189,776.47 and 77,092.89

Step by Step Solution

1. Step 1: Write the proportion equation
   137,510.59 : 189,776.47 = 77,092.89 : x
2. Step 2: Convert to fraction form
   137,510.59/189,776.47 = 77,092.89/x
3. Step 3: Cross multiply
   137,510.59x = 189,776.47 × 77,092.89
4. Step 4: Simplify right side
   137,510.59x = 14,630,416,300.20
5. Step 5: Solve for x
   x = 14,630,416,300.20/137,510.59
6. Step 6: Final answer
   x = 106,394.84