Finding the Fourth Proportional to 76,692.36, 105,834.61 and 42,700.10

Step by Step Solution

1. Step 1: Write the proportion equation
   76,692.36 : 105,834.61 = 42,700.10 : x
2. Step 2: Convert to fraction form
   76,692.36/105,834.61 = 42,700.10/x
3. Step 3: Cross multiply
   76,692.36x = 105,834.61 × 42,700.10
4. Step 4: Simplify right side
   76,692.36x = 4,519,148,430.46
5. Step 5: Solve for x
   x = 4,519,148,430.46/76,692.36
6. Step 6: Final answer
   x = 58,925.67