Finding the Fourth Proportional to 144,385.29, 216,561.38 and 37,779.55

Step by Step Solution

1. Step 1: Write the proportion equation
   144,385.29 : 216,561.38 = 37,779.55 : x
2. Step 2: Convert to fraction form
   144,385.29/216,561.38 = 37,779.55/x
3. Step 3: Cross multiply
   144,385.29x = 216,561.38 × 37,779.55
4. Step 4: Simplify right side
   144,385.29x = 8,181,590,753.48
5. Step 5: Solve for x
   x = 8,181,590,753.48/144,385.29
6. Step 6: Final answer
   x = 56,664.99