Finding the Fourth Proportional to 45,810.74, 69,069.30 and 45,526.42

Step by Step Solution

1. Step 1: Write the proportion equation
   45,810.74 : 69,069.30 = 45,526.42 : x
2. Step 2: Convert to fraction form
   45,810.74/69,069.30 = 45,526.42/x
3. Step 3: Cross multiply
   45,810.74x = 69,069.30 × 45,526.42
4. Step 4: Simplify right side
   45,810.74x = 3,144,477,733.27
5. Step 5: Solve for x
   x = 3,144,477,733.27/45,810.74
6. Step 6: Final answer
   x = 68,640.62