Finding the Fourth Proportional to 76,302.13, 105,383.16 and 52,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,302.13 : 105,383.16 = 52,061.50 : x
2. Step 2: Convert to fraction form
   76,302.13/105,383.16 = 52,061.50/x
3. Step 3: Cross multiply
   76,302.13x = 105,383.16 × 52,061.50
4. Step 4: Simplify right side
   76,302.13x = 5,486,405,384.34
5. Step 5: Solve for x
   x = 5,486,405,384.34/76,302.13
6. Step 6: Final answer
   x = 71,903.70