Finding the Fourth Proportional to 53,528.02, 73,838.90 and 42,155.62

Step by Step Solution

1. Step 1: Write the proportion equation
   53,528.02 : 73,838.90 = 42,155.62 : x
2. Step 2: Convert to fraction form
   53,528.02/73,838.90 = 42,155.62/x
3. Step 3: Cross multiply
   53,528.02x = 73,838.90 × 42,155.62
4. Step 4: Simplify right side
   53,528.02x = 3,112,724,240.42
5. Step 5: Solve for x
   x = 3,112,724,240.42/53,528.02
6. Step 6: Final answer
   x = 58,151.31