Finding the Fourth Proportional to 140,897.53, 211,437.89 and 61,013.51

Step by Step Solution

1. Step 1: Write the proportion equation
   140,897.53 : 211,437.89 = 61,013.51 : x
2. Step 2: Convert to fraction form
   140,897.53/211,437.89 = 61,013.51/x
3. Step 3: Cross multiply
   140,897.53x = 211,437.89 × 61,013.51
4. Step 4: Simplify right side
   140,897.53x = 12,900,567,815.89
5. Step 5: Solve for x
   x = 12,900,567,815.89/140,897.53
6. Step 6: Final answer
   x = 91,559.93