Finding the Fourth Proportional to 123,069,185.28, 169,887,769.74 and 76,682,358

Step by Step Solution

1. Step 1: Write the proportion equation
   123,069,185.28 : 169,887,769.74 = 76,682,358 : x
2. Step 2: Convert to fraction form
   123,069,185.28/169,887,769.74 = 76,682,358/x
3. Step 3: Cross multiply
   123,069,185.28x = 169,887,769.74 × 76,682,358
4. Step 4: Simplify right side
   123,069,185.28x = 13,027,394,779,024,248
5. Step 5: Solve for x
   x = 13,027,394,779,024,248/123,069,185.28
6. Step 6: Final answer
   x = 105,854,237.59