Finding the Fourth Proportional to 99,723,685.18, 149,632,900.53 and 69,065,444.38

Step by Step Solution

1. Step 1: Write the proportion equation
   99,723,685.18 : 149,632,900.53 = 69,065,444.38 : x
2. Step 2: Convert to fraction form
   99,723,685.18/149,632,900.53 = 69,065,444.38/x
3. Step 3: Cross multiply
   99,723,685.18x = 149,632,900.53 × 69,065,444.38
4. Step 4: Simplify right side
   99,723,685.18x = 10,334,462,768,972,786
5. Step 5: Solve for x
   x = 10,334,462,768,972,786/99,723,685.18
6. Step 6: Final answer
   x = 103,630,975.43