Finding the Fourth Proportional to 91,507.61, 137,061.47 and 38,037.48

Step by Step Solution

1. Step 1: Write the proportion equation
   91,507.61 : 137,061.47 = 38,037.48 : x
2. Step 2: Convert to fraction form
   91,507.61/137,061.47 = 38,037.48/x
3. Step 3: Cross multiply
   91,507.61x = 137,061.47 × 38,037.48
4. Step 4: Simplify right side
   91,507.61x = 5,213,472,733.71
5. Step 5: Solve for x
   x = 5,213,472,733.71/91,507.61
6. Step 6: Final answer
   x = 56,973.11