Finding the Fourth Proportional to 61,442.47, 92,045.60 and 37,680.72

Step by Step Solution

1. Step 1: Write the proportion equation
   61,442.47 : 92,045.60 = 37,680.72 : x
2. Step 2: Convert to fraction form
   61,442.47/92,045.60 = 37,680.72/x
3. Step 3: Cross multiply
   61,442.47x = 92,045.60 × 37,680.72
4. Step 4: Simplify right side
   61,442.47x = 3,468,344,480.83
5. Step 5: Solve for x
   x = 3,468,344,480.83/61,442.47
6. Step 6: Final answer
   x = 56,448.65