Finding the Fourth Proportional to 72,003,060.60, 99,364,824.42 and 42,251,498.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,003,060.60 : 99,364,824.42 = 42,251,498.98 : x
2. Step 2: Convert to fraction form
   72,003,060.60/99,364,824.42 = 42,251,498.98/x
3. Step 3: Cross multiply
   72,003,060.60x = 99,364,824.42 × 42,251,498.98
4. Step 4: Simplify right side
   72,003,060.60x = 4,198,312,777,629,509
5. Step 5: Solve for x
   x = 4,198,312,777,629,509/72,003,060.60
6. Step 6: Final answer
   x = 58,307,421.14