Finding the Fourth Proportional to 101,962,151.69, 152,944,300.08 and 81,621,178.20

Step by Step Solution

1. Step 1: Write the proportion equation
   101,962,151.69 : 152,944,300.08 = 81,621,178.20 : x
2. Step 2: Convert to fraction form
   101,962,151.69/152,944,300.08 = 81,621,178.20/x
3. Step 3: Cross multiply
   101,962,151.69x = 152,944,300.08 × 81,621,178.20
4. Step 4: Simplify right side
   101,962,151.69x = 12,483,493,971,503,956
5. Step 5: Solve for x
   x = 12,483,493,971,503,956/101,962,151.69
6. Step 6: Final answer
   x = 122,432,625.88