Finding the Fourth Proportional to 76,515.33, 105,588.62 and 42,060.17

Step by Step Solution

1. Step 1: Write the proportion equation
   76,515.33 : 105,588.62 = 42,060.17 : x
2. Step 2: Convert to fraction form
   76,515.33/105,588.62 = 42,060.17/x
3. Step 3: Cross multiply
   76,515.33x = 105,588.62 × 42,060.17
4. Step 4: Simplify right side
   76,515.33x = 4,441,075,307.27
5. Step 5: Solve for x
   x = 4,441,075,307.27/76,515.33
6. Step 6: Final answer
   x = 58,041.64