Finding the Fourth Proportional to 77,003.34, 115,520.34 and 37,561.20

Step by Step Solution

1. Step 1: Write the proportion equation
   77,003.34 : 115,520.34 = 37,561.20 : x
2. Step 2: Convert to fraction form
   77,003.34/115,520.34 = 37,561.20/x
3. Step 3: Cross multiply
   77,003.34x = 115,520.34 × 37,561.20
4. Step 4: Simplify right side
   77,003.34x = 4,339,082,594.81
5. Step 5: Solve for x
   x = 4,339,082,594.81/77,003.34
6. Step 6: Final answer
   x = 56,349.28