Finding the Fourth Proportional to 53,725.17, 74,123.51 and 31,061.19

Step by Step Solution

1. Step 1: Write the proportion equation
   53,725.17 : 74,123.51 = 31,061.19 : x
2. Step 2: Convert to fraction form
   53,725.17/74,123.51 = 31,061.19/x
3. Step 3: Cross multiply
   53,725.17x = 74,123.51 × 31,061.19
4. Step 4: Simplify right side
   53,725.17x = 2,302,364,272.27
5. Step 5: Solve for x
   x = 2,302,364,272.27/53,725.17
6. Step 6: Final answer
   x = 42,854.48