Finding the Fourth Proportional to 137,595.27, 189,889.76 and 77,169.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,595.27 : 189,889.76 = 77,169.50 : x
2. Step 2: Convert to fraction form
   137,595.27/189,889.76 = 77,169.50/x
3. Step 3: Cross multiply
   137,595.27x = 189,889.76 × 77,169.50
4. Step 4: Simplify right side
   137,595.27x = 14,653,696,499.02
5. Step 5: Solve for x
   x = 14,653,696,499.02/137,595.27
6. Step 6: Final answer
   x = 106,498.55