Finding the Fourth Proportional to 148,621,002.39, 205,099,518.83 and 81,642,784.61

Step by Step Solution

1. Step 1: Write the proportion equation
   148,621,002.39 : 205,099,518.83 = 81,642,784.61 : x
2. Step 2: Convert to fraction form
   148,621,002.39/205,099,518.83 = 81,642,784.61/x
3. Step 3: Cross multiply
   148,621,002.39x = 205,099,518.83 × 81,642,784.61
4. Step 4: Simplify right side
   148,621,002.39x = 16,744,895,839,556,862
5. Step 5: Solve for x
   x = 16,744,895,839,556,862/148,621,002.39
6. Step 6: Final answer
   x = 112,668,435.62