Finding the Fourth Proportional to 139,189,837.98, 208,811,644.24 and 52,921,536.96

Step by Step Solution

1. Step 1: Write the proportion equation
   139,189,837.98 : 208,811,644.24 = 52,921,536.96 : x
2. Step 2: Convert to fraction form
   139,189,837.98/208,811,644.24 = 52,921,536.96/x
3. Step 3: Cross multiply
   139,189,837.98x = 208,811,644.24 × 52,921,536.96
4. Step 4: Simplify right side
   139,189,837.98x = 11,050,633,148,325,532
5. Step 5: Solve for x
   x = 11,050,633,148,325,532/139,189,837.98
6. Step 6: Final answer
   x = 79,392,528.28