Finding the Fourth Proportional to 100,521,145.68, 138,725,106.52 and 75,697,536.58

Step by Step Solution

1. Step 1: Write the proportion equation
   100,521,145.68 : 138,725,106.52 = 75,697,536.58 : x
2. Step 2: Convert to fraction form
   100,521,145.68/138,725,106.52 = 75,697,536.58/x
3. Step 3: Cross multiply
   100,521,145.68x = 138,725,106.52 × 75,697,536.58
4. Step 4: Simplify right side
   100,521,145.68x = 10,501,148,825,362,098
5. Step 5: Solve for x
   x = 10,501,148,825,362,098/100,521,145.68
6. Step 6: Final answer
   x = 104,467,062.67