Finding the Fourth Proportional to 106,933,191.39, 147,688,169.58 and 72,269,066.43

Step by Step Solution

1. Step 1: Write the proportion equation
   106,933,191.39 : 147,688,169.58 = 72,269,066.43 : x
2. Step 2: Convert to fraction form
   106,933,191.39/147,688,169.58 = 72,269,066.43/x
3. Step 3: Cross multiply
   106,933,191.39x = 147,688,169.58 × 72,269,066.43
4. Step 4: Simplify right side
   106,933,191.39x = 10,673,286,138,302,128
5. Step 5: Solve for x
   x = 10,673,286,138,302,128/106,933,191.39
6. Step 6: Final answer
   x = 99,812,658.72