Finding the Fourth Proportional to 56,484.38, 84,787.86 and 42,484.34

Step by Step Solution

1. Step 1: Write the proportion equation
   56,484.38 : 84,787.86 = 42,484.34 : x
2. Step 2: Convert to fraction form
   56,484.38/84,787.86 = 42,484.34/x
3. Step 3: Cross multiply
   56,484.38x = 84,787.86 × 42,484.34
4. Step 4: Simplify right side
   56,484.38x = 3,602,156,272.11
5. Step 5: Solve for x
   x = 3,602,156,272.11/56,484.38
6. Step 6: Final answer
   x = 63,772.61