Finding the Fourth Proportional to 60,748.12, 91,048.29 and 42,983.89

Step by Step Solution

1. Step 1: Write the proportion equation
   60,748.12 : 91,048.29 = 42,983.89 : x
2. Step 2: Convert to fraction form
   60,748.12/91,048.29 = 42,983.89/x
3. Step 3: Cross multiply
   60,748.12x = 91,048.29 × 42,983.89
4. Step 4: Simplify right side
   60,748.12x = 3,913,609,682.05
5. Step 5: Solve for x
   x = 3,913,609,682.05/60,748.12
6. Step 6: Final answer
   x = 64,423.56